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5.3  AIS Operation
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5.3.9    Setting Conditions for AIS Alarm (AIS Alarm Setting) 
 
Conditions for issuing a Lost alarm and CPA/TCPA alarm for AIS targets can be set. 
 
 
Setting of Condition for Lost Alarm 
 
 
 Procedures   1  Open the AIS Alarm Setting menu by performing the following menu 
operation. 
 
       AIS 
 → AIS Alarm Setting 
 
2  Left-click the item button of    Lost Alarm . 
 
The setting items for Lost Alarm will be displayed. 
 
3  Left-click the item button corresponding to the condition to be set. 
 
  Off    : A lost alarm is not issued. 
  Danger    : A lost alarm is issued only for AIS targets for which a dangerous 
  target alarm has been issued. 
  ACT&Danger    : A lost alarm is issued only for activated AIS targets and AIS targets 
  for which a dangerous target alarm has been issued. 
 
Note:
   A lost alarm is not issued for sleeping AIS targets. 
 
 
 
Setting of Condition for CPA/TCPA Alarm 
 
 
 Procedures   1  Open the AIS Alarm Setting menu by performing the following menu 
operation. 
 
       AIS 
 → AIS Alarm Setting 
 
2  Left-click the item button of    CPA/TCPA Alarm . 
 
The setting item for CPA/TCPA Alarm is switched. 
 
  ACT    : A CPA/TCPA alarm is issued only for activated AIS targets. 
  ACT&Sleep    : A CPA/TCPA alarm is issued for all AIS targets on the radar display.